What is the significance of Charlie's decision not to provide the names of his family members?

While Charlie claims that he does not provide his family members' names in order to preserve his anonymity, there is significance in the fact that he provides the names of all of his friends. Charlie's identity could be easily determined from the information he provides about these acquaintances. This essay could talk about the significance of naming Charlie's friends, and could also explain how this writing strategy reflects the priority that they have in his life - a priority that, arguably, causes them to trump Charlie's own family.